Freeport-McMoRan Inc., often called Freeport, is an American mining company based in the Freeport-McMoRan Center, in Phoenix, Arizona. The company is the world's largest producer of molybdenum, a major copper producer and operates the world's largest gold mine, the Grasberg mine in Papua, Indonesia. During 2018 Freeport-McMoRan Copper & Gold along with 90 additional Fortune 500 companies "paid an effective federal tax rate of 0% or less" as a result of Donald Trump´s Tax Cuts and Jobs Act of 2017. Wikipedia